New spring 2017; this replaces the original Adventurer and is tubeless-ready. Note that these rims (like the original Adventurer) seem specific to QBP; you won't find any info about them directly from Alex. Dims and weight taken on new 32h specimen. -Karl
(note that the rim sticker says "Adventurer 2" but all of QBP's product info says "Adventure 2". I'm going with what's on the sticker so it's easier to find when searching either way.)